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morlet(2) Scilab Function morlet(2)
NAME
morlet - Morlet wavelet
Author: Paulo Goncalves
Computes a Morlet wavelet.
Usage
[wavelet,alpha] = morlet(nu,[N,analytic])
Input parameters
o nu : real scalar between 0 and 1/2 Central (reduced) frequency of
the wavelet
o N : Positive integer Half length of the wavelet transform. Default
value corresponds to a total length of 4.5 periods.
o analytic : boolean (0/1) under Matalb or (%F/%T) under Scilab. 0 or
%F : real Morlet wavelet 1 or %T : analytic Morlet wavelet
Output parameters
o wavelet : real or complex vector [1,2*N+1] Morlet wavelet in time.
o alpha : real scalar Attenuation exponent of the Gaussian enveloppe
of the Morlet wavelet.
See also:
mexhat, contwt
Example:
wavelet synthesis
wavelet1 = morlet(0.1,64) ;
wavelet2 = morlet(0.1) ;
plot(wavelet1) ; pause
plot(wavelet2)
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